Patents by Inventor Kay Patricia Coolbear

Kay Patricia Coolbear has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for isolating glycomacropeptide from dairy products with a phenylalanine impurity of 0.5% w/w
    Patent number: 6555659
    Abstract: The present invention is related to a method for the purification of glycomacropeptide (GMP) with an amino acid composition containing no greater that 0.5% (w/w) phenylalanine, comprising the steps of contacting a GMP-containing feedstock with a first anion exchanger under conditions to adsorb the GMP, eluting the adsorbed GMP from the anion exchanger and removing impurities from the GMP-containing eluate by either: (i) contacting the GMP-containing eluate with a cation exchanger in conditions under which the impurities in the eluate are adsorbed onto the cation exchanger, or (ii) precipitating the impurities in GMP-containing eluate using conditions in which the GMP remains i solution, or (iii) contacting the GMP-containing eluate with a second anion exchanger in conditions under which the impurities in the eluate are adsorbed onto the anion exchanger, and recovering the GMP from whichever one or more of the steps (i), (ii) or (iii) was used.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: April 29, 2003
    Inventors: John Stephen Ayers, Kay Patricia Coolbear, David Francis Elgar, Mark Pritchard